Cobalt source container shielding plug sling

Abstract

The utility model discloses a cobalt source container shielding plug sling which comprises a lifting beam, a connecting piece, a rotary lifting ring, a shackle and a steel wire rope rigging, the lifting beam is used for being connected with a crane, the connecting piece is used for being connected with the lifting beam, the rotary lifting ring is arranged below the connecting piece and rotationally connected with the connecting piece, and the shackle is connected with the steel wire rope rigging. The shackle is used for being fixed to a shielding plug, and the steel wire rope rigging is arranged between the rotating hanging ring and the shackle. The utility model has the following advantages and effects: in the use process of the sling, as the rotary lifting ring is connected below the connecting piece and can freely rotate relative to the thread bushing, the shielding plug only drives the rotary lifting ring to rotate without influencing the lifting beam or causing the lifting beam connected with a crane to rotate when the sling is reset during installation; therefore, the hanging beam is effectively ensured to be always in a working state, and the working process is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of lifting and hoisting, in particular to a shielding plug sling for a cobalt source container. Background Art

[0002] Cobalt 60 is a radioactive element artificially synthesized from cobalt-59. During its decay, cobalt 60 can release two gamma photons and is widely used in many fields such as food, medicine, mechanical flaw detection, and radiotherapy. Among them, the GY-20 cobalt source container is a commonly used industrial cobalt 60 road transport device.

[0003] In industrial applications, most of the cobalt 60 is stored by professional institutions and rented out for use. During the rental process, the cobalt 60 is packed in a cylindrical container mainly made of metal lead and transported to the site for use. After the cobalt 60 radioactive source is used and transported back, it is placed in a 7-meter-deep well and then taken out of the cobalt 60 container.

[0004] The GY-20 cobalt source container is usually designed in a cylindrical shape, with 6 lifting ears evenly distributed around the top, with lifting holes on the lifting ears, and a shielding plug on the top of the container as the entrance and exit for storing and accessing the cobalt radioactive source. Generally, the shielding plug is opened underwater to store the cobalt source, and then fastened with 8 bolts to keep the shielding plug and the container in a fixed installation direction.

[0005] At present, a sling is required in the process of opening the shielding plug. However, the traditional sling installation process is relatively complicated, and the sling cannot rotate with the shielding plug. Therefore, after the shielding plug is rotated, the sling will be twisted together and the generated force will be transmitted upward, causing the hanging beam connected to the crane to rotate, affecting the use of the hanging beam, which needs to be improved. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a cobalt source container shielding plug sling, which has the effects of being easy to disassemble and capable of rotating.

[0007] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a cobalt source container shielding plug sling, including a lifting beam, a connecting piece, a rotating lifting ring, a shackle and a wire rope rigging, the lifting beam is used to connect a crane, the connecting piece is used to connect the lifting beam, the rotating lifting ring is arranged below the connecting piece and is rotatably connected to the connecting piece, the shackle is used to be fixed to the shielding plug, and the wire rope rigging is arranged between the rotating lifting ring and the shackle.

[0008] In a preferred example, the utility model can be further configured as follows: the connecting piece includes a threaded sleeve and a hand-tightening portion, the hand-tightening portion is arranged below the threaded sleeve, and the outer wall diameter is larger than the outer wall diameter of the threaded sleeve, and the outer wall of the hand-tightening portion is provided with a circle of anti-slip grooves.

[0009] In a preferred example, the present invention can be further configured as follows: the anti-slip pattern is arranged obliquely.

[0010] In a preferred example, the utility model can be further configured as follows: the rotating lifting ring includes a rod body, an end head and a ring body, the rod body vertically passes through the hand-tightening part and is coaxially arranged with the hand-tightening part, the end head is arranged at the upper end of the rod body and presses the upper end surface of the hand-tightening part, and the ring body is arranged at the lower end of the rod body.

[0011] In a preferred example, the utility model can be further configured as follows: the shackle includes a U-shaped connecting rod and a locking piece, the locking piece includes a screw rod and a nut, the screw rod traverses both ends of the connecting rod, and the nut is threadedly connected to the screw rod.

[0012] In a preferred example, the utility model can be further configured as follows: the locking element includes a locking rod, a locking ring and a pair of locking blocks, the locking rod crosses the two ends of the connecting rod, the locking ring is arranged at one end of the locking rod, the pair of locking blocks are rotatably connected to the other end of the locking rod and rotate in relative directions, and a torsion spring is arranged at the rotating end position of the locking block to control the locking block to rotate outward.

[0013] In a preferred example, the utility model can be further configured as follows: a clamping block and a clamping slot that are clamped and fixed to each other are provided on one side of a pair of locking blocks that are close to each other.

[0014] In a preferred example, the utility model can be further configured as follows: the two ends of the steel wire rope sling are connected to form a closed loop, and the connection position is located in the middle of the steel wire rope sling.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. During the use of the sling, since the rotating ring is connected to the bottom of the connector, the rotating ring can rotate freely relative to the threaded sleeve. Therefore, when resetting during installation, the shielding plug only drives the rotating ring to rotate, but does not affect the hanging beam, and will not cause the hanging beam connected to the crane to rotate, thereby effectively ensuring that the hanging beam is always in a working state, making the working process more convenient;

[0017] 2. By adopting temporary assembly, the shielding plug is opened after the hanging beam leaves a certain height, so as to reduce the radiation dose borne by the hanging beam. At the same time, when installing the shielding plug, the wire rope sling can rotate freely relative to the hanging beam, but the hanging beam does not rotate, and the rotation of the shielding plug does not affect the operation of the hanging beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of Example 1;

[0019] Figure 2 is a schematic structural diagram of a steel wire rope sling according to Embodiment 1;

[0020] Figure 3 is a schematic structural diagram of the connecting piece and the rotating lifting ring of Example 1;

[0021] Figure 4 It is a structural schematic diagram of Example 2.

[0022] Figure numerals: 1. lifting beam; 2. connecting piece; 21. threaded sleeve; 22. hand-tightening part; 23. anti-slip pattern; 3. rotating lifting ring; 31. rod body; 32. end; 33. ring body; 4. shackle; 41. connecting rod; 42. locking piece; 43. screw; 44. nut; 45. locking rod; 46. locking ring; 47. locking block; 48. clamping block; 49. clamping groove; 5. wire rope sling. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings. Example

[0024] like Figure 1 , Figure 2 As shown, a cobalt source container shielding plug sling includes a sling beam 1, a connecting piece 2, a rotating sling ring 3, a shackle 4 and a wire rope sling 5.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the hanging beam 1 is used to connect the crane, and the connecting piece 2 is used to connect the hanging beam 1. The connecting piece 2 includes a threaded sleeve 21 and a hand-tightening portion 22. The threaded sleeve 21 is used to be screwed and fixed to the hanging beam 1. The hand-tightening portion 22 is arranged below the threaded sleeve 21, and the outer wall diameter is larger than the outer wall diameter of the threaded sleeve 21. The outer wall of the hand-tightening portion 22 is provided with a circle of anti-skid patterns 23, and the anti-skid patterns 23 are arranged obliquely to prevent slipping when the hand-tightening portion 22 is rotated, thereby realizing the rapid tightening or loosening of the connecting piece 2.

[0026] like Figure 2 , Figure 3 As shown, the rotating ring 3 is arranged below the connecting member 2 and is rotatably connected to the connecting member 2. The rotating ring 3 includes a rod body 31, an end 32 and a ring body 33. The rod body 31 vertically penetrates the hand-tightening portion 22 and is coaxially arranged with the hand-tightening portion 22. The end 32 is arranged at the upper end of the rod body 31 and presses the upper end surface of the hand-tightening portion 22. The ring body 33 is arranged at the lower end of the rod body 31 and is integrally formed with the rod body 31 to increase the structural strength of the rotating ring 3.

[0027] like Figure 2 , Figure 3As shown, the shackle 4 is used to be fixed to the shielding plug. The shackle 4 includes a U-shaped connecting rod 41 and a locking piece 42. The connecting rod 41 spans across both sides of the lifting ear on the shielding plug. The locking piece 42 includes a screw rod 43 and a nut 44. The screw rod 43 spans across both ends of the connecting rod 41 and the lifting ear, and the nut 44 is threadedly connected to the screw rod 43.

[0028] like Figure 2 , Figure 3 As shown, the wire rope sling 5 is arranged between the rotating eye 3 and the shackle 4, and the two ends of the wire rope sling 5 are connected to form a closed loop, and the connection position is located in the middle of the wire rope sling 5. At the same time, a quarter of the wire rope sling 5 is folded to form a wire ring for the ring body 33 and the connecting rod 41 to pass through, so that the wire rope sling 5 is divided into two strands, which increases the load-bearing capacity of the wire rope sling 5 and improves the service life of the wire rope sling 5.

[0029] During the use of the sling, before opening the shielding plug underwater, the sling is installed in the middle position of the bottom of the beam 1 by manually rotating the threaded sleeve 21. Since the rotating ring 3 is connected to the bottom of the connecting piece 2, the rotating ring 3 can rotate freely relative to the threaded sleeve 21. The rotating ring 3 is connected to the bottom of the wire rope sling 5 and the shackle 4, and the shielding plug is connected to the shackle 4.

[0030] When the shielding plug is disassembled and reset during installation, it needs to be rotated and aligned. At this time, the shielding plug only drives the rotating lifting ring 3 to rotate, but does not affect the hanging beam 1. The wire rope sling 5 between the shackle 4 and the rotating lifting ring 3 is 3-4 meters long to ensure that the shielding plug can be opened only after the hoisting device is lifted to a certain height.

[0031] Therefore, after the shielding plug is rotated, the slings will not be twisted together, nor will the generated force be transmitted upward, and will not cause the hanging beam 1 connected to the crane to rotate, thereby effectively ensuring that the hanging beam 1 is always in a working state, making the working process more convenient.

[0032] Therefore, under the current situation of limited height space in many places, temporary assembly is used to ensure that the shielding plug is opened after the hanging beam 1 leaves a certain height, so as to reduce the radiation dose borne by the hanging beam 1. At the same time, when installing the shielding plug, the wire rope sling 5 rotates freely relative to the hanging beam 1, while the hanging beam 1 does not rotate, and the rotation of the shielding plug does not affect the operation of the hanging beam 1. Example

[0033] like Figure 4 As shown, a cobalt source container shielding plug sling is different from Example 1 in that a locking member 42 includes a locking rod 45, a locking ring 46 and a pair of locking blocks 47.

[0034] like Figure 4As shown, the locking rod 45 crosses both ends of the connecting rod 41, and the locking ring 46 is disposed at one end of the locking rod 45 and is used to abut against the outer wall of one end of the connecting rod 41. A pair of locking blocks 47 are rotatably connected to the other end of the locking rod 45 and rotate in opposite directions and are used to abut against the outer wall of the other end of the connecting rod 41.

[0035] like Figure 4 As shown, a torsion spring for controlling the outward rotation of the lock block 47 is provided at the rotation end of the lock block 47 so that the lock block 47 is always flipped outward, and a clamping block 48 and a clamping groove 49 that are fixed to each other are provided on one side of a pair of lock blocks 47 that are close to each other, so as to realize the clamping and fixing of the lock blocks 47 when the lock blocks 47 are combined, so that the lock rod 45 can continuously pass through the connecting rod 41 and the lifting ear.

[0036] When the sling needs to be fixed on the shielding plug, a pair of locking blocks 47 are controlled to rotate so that the length direction of the locking block 47 is the same as the length direction of the locking rod 45, and then the locking block 47 is fixed by using the cooperation of the clamping block 48 and the clamping groove 49, so that the locking block 47 can follow the locking rod 45 to pass through the connecting rod 41 and the lifting ear.

[0037] Then, a pair of locking blocks 47 are controlled to flip in the opposite direction to separate the card block 48 and the card slot 49. At this time, under the action of the torsion spring, the locking block 47 automatically flips outward and the locking rod 45 is limited in the horizontal direction, thereby realizing the rapid fixation of the locking member 42 and ensuring the rapid connection between the sling and the shielding plug.

[0038] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A cobalt source container shielding plug sling, characterized in that: The invention comprises a suspension beam (1), a connecting member (2), a rotating lifting ring (3), a shackle (4) and a wire rope sling (5), wherein the suspension beam (1) is used to connect a crane, the connecting member (2) is used to connect the suspension beam (1), the rotating lifting ring (3) is arranged below the connecting member (2) and is rotatably connected to the connecting member (2), the shackle (4) is used to be fixed to a shielding plug, and the wire rope sling (5) is arranged between the rotating lifting ring (3) and the shackle (4); the shackle (4) comprises a U-shaped connecting rod (41) and a locking member (42), and the locking member (42) is connected to the shielding plug by a locking member (43). 42) includes a locking rod (45), a locking ring (46) and a pair of locking blocks (47), wherein the locking rod (45) crosses the two ends of the connecting rod (41), the locking ring (46) is arranged at one end of the locking rod (45), the pair of locking blocks (47) are rotatably connected to the other end of the locking rod (45), and rotate in opposite directions, and the rotating end position of the locking block (47) is provided with a torsion spring for controlling the outward rotation of the locking block (47); a clamping block (48) and a clamping groove (49) that are mutually clamped and fixed are arranged on one side of the pair of locking blocks (47) close to each other.

2. A cobalt source container shielding plug sling according to claim 1, characterized in that: The connecting piece (2) comprises a threaded sleeve (21) and a hand-tightening portion (22). The hand-tightening portion (22) is arranged below the threaded sleeve (21) and has an outer wall diameter greater than an outer wall diameter of the threaded sleeve (21). The outer wall of the hand-tightening portion (22) is provided with a circle of anti-slip grooves (23).

3. A cobalt source container shielding plug sling according to claim 2, characterized in that: The anti-slip pattern (23) is arranged obliquely.

4. A cobalt source container shielding plug sling according to claim 2, characterized in that: The rotating lifting ring (3) comprises a rod body (31), an end head (32) and a ring body (33); the rod body (31) vertically penetrates the hand-tightening portion (22) and is coaxially arranged with the hand-tightening portion (22); the end head (32) is arranged at the upper end of the rod body (31) and presses the upper end surface of the hand-tightening portion (22); and the ring body (33) is arranged at the lower end of the rod body (31).

5. A cobalt source container shielding plug sling according to claim 1, characterized in that: The two ends of the steel wire rope rigging (5) are connected to form a closed loop, and the connection position is located in the middle of the steel wire rope rigging (5).

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